1cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project/* 2cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Copyright 2008, The Android Open Source Project 3cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 4cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * you may not use this file except in compliance with the License. 6cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * You may obtain a copy of the License at 7cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 8cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 10cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * See the License for the specific language governing permissions and 14cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * limitations under the License. 15cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 16cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 17cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <stdlib.h> 18cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <fcntl.h> 19cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <errno.h> 20cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <string.h> 21eea19f1d855b9434313fbb9447a23caf8123aa58Dmitry Shmidt#include <dirent.h> 2245bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt#include <sys/socket.h> 23cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root#include <unistd.h> 2445bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt#include <poll.h> 25cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 26cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "hardware_legacy/wifi.h" 2741d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#ifdef LIBWPA_CLIENT_EXISTS 28cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "libwpa_client/wpa_ctrl.h" 2941d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#endif 30cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 31cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#define LOG_TAG "WifiHW" 32cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/log.h" 33cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/memory.h" 34cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/misc.h" 35cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "cutils/properties.h" 36cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include "private/android_filesystem_config.h" 37cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#ifdef HAVE_LIBC_SYSTEM_PROPERTIES 38cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_ 39cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#include <sys/_system_properties.h> 40cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#endif 41cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 42445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern int do_dhcp(); 43445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern int ifc_init(); 44445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern void ifc_close(); 45445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern char *dhcp_lasterror(); 46445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruextern void get_dhcp_info(); 47cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectextern int init_module(void *, unsigned long, const char *); 48cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectextern int delete_module(const char *, unsigned int); 490f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndevoid wifi_close_sockets(); 50cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 5141d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#ifndef LIBWPA_CLIENT_EXISTS 5241d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#define WPA_EVENT_TERMINATING "CTRL-EVENT-TERMINATING " 5341d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstruct wpa_ctrl {}; 5441d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtvoid wpa_ctrl_cleanup(void) {} 5541d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstruct wpa_ctrl *wpa_ctrl_open(const char *ctrl_path) { return NULL; } 5641d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtvoid wpa_ctrl_close(struct wpa_ctrl *ctrl) {} 5741d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len, 5841d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt char *reply, size_t *reply_len, void (*msg_cb)(char *msg, size_t len)) 5941d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt { return 0; } 6041d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_attach(struct wpa_ctrl *ctrl) { return 0; } 6141d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_detach(struct wpa_ctrl *ctrl) { return 0; } 6241d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len) 6341d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt { return 0; } 6441d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtint wpa_ctrl_get_fd(struct wpa_ctrl *ctrl) { return 0; } 6541d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt#endif 6641d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt 6741d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstatic struct wpa_ctrl *ctrl_conn; 6841d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstatic struct wpa_ctrl *monitor_conn; 6941d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt 7041d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt/* socket pair used to exit from a blocking read */ 7141d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidtstatic int exit_sockets[2]; 7241d81d174858ca39ead245e12a8e2547e0314201Dmitry Shmidt 73da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriffstatic char primary_iface[PROPERTY_VALUE_MAX]; 74cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project// TODO: use new ANDROID_SOCKET mechanism, once support for multiple 75cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project// sockets is in 76cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 77243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#ifndef WIFI_DRIVER_MODULE_ARG 78243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#define WIFI_DRIVER_MODULE_ARG "" 79243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#endif 80243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#ifndef WIFI_FIRMWARE_LOADER 81243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#define WIFI_FIRMWARE_LOADER "" 82243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#endif 83243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt#define WIFI_TEST_INTERFACE "sta" 84243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt 854b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_STA 864b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#define WIFI_DRIVER_FW_PATH_STA NULL 874b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#endif 884b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_AP 894b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#define WIFI_DRIVER_FW_PATH_AP NULL 904b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#endif 914b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_P2P 924b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#define WIFI_DRIVER_FW_PATH_P2P NULL 934b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt#endif 944b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt 9529a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt#ifndef WIFI_DRIVER_FW_PATH_PARAM 9629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt#define WIFI_DRIVER_FW_PATH_PARAM "/sys/module/wlan/parameters/fwpath" 9729a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt#endif 9829a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt 99ed8487244b1c9f72fb5d22c7a18918ac34063ceeDmitry Shmidt#define WIFI_DRIVER_LOADER_DELAY 1000000 100ed8487244b1c9f72fb5d22c7a18918ac34063ceeDmitry Shmidt 101cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char IFACE_DIR[] = "/data/system/wpa_supplicant"; 102d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 103243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_NAME[] = WIFI_DRIVER_MODULE_NAME; 104243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_TAG[] = WIFI_DRIVER_MODULE_NAME " "; 105243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_PATH[] = WIFI_DRIVER_MODULE_PATH; 106243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char DRIVER_MODULE_ARG[] = WIFI_DRIVER_MODULE_ARG; 107d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 108243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic const char FIRMWARE_LOADER[] = WIFI_FIRMWARE_LOADER; 109cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char DRIVER_PROP_NAME[] = "wlan.driver.status"; 110cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPPLICANT_NAME[] = "wpa_supplicant"; 111cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPP_PROP_NAME[] = "init.svc.wpa_supplicant"; 112096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic const char P2P_SUPPLICANT_NAME[] = "p2p_supplicant"; 113096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic const char P2P_PROP_NAME[] = "init.svc.p2p_supplicant"; 114cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPP_CONFIG_TEMPLATE[]= "/system/etc/wifi/wpa_supplicant.conf"; 115cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char SUPP_CONFIG_FILE[] = "/data/misc/wifi/wpa_supplicant.conf"; 11667ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriffstatic const char P2P_CONFIG_FILE[] = "/data/misc/wifi/p2p_supplicant.conf"; 117096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic const char CONTROL_IFACE_PATH[] = "/data/misc/wifi/sockets"; 118cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic const char MODULE_FILE[] = "/proc/modules"; 119cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 120ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidtstatic const char IFNAME[] = "IFNAME="; 121ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt#define IFNAMELEN (sizeof(IFNAME) - 1) 122ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidtstatic const char WPA_EVENT_IGNORE[] = "CTRL-EVENT-IGNORE "; 123ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt 1243ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidtstatic const char SUPP_ENTROPY_FILE[] = WIFI_ENTROPY_FILE; 12507a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidtstatic unsigned char dummy_key[21] = { 0x02, 0x11, 0xbe, 0x33, 0x43, 0x35, 12607a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidt 0x68, 0x47, 0x84, 0x99, 0xa9, 0x2b, 12707a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidt 0x1c, 0xd3, 0xee, 0xff, 0xf1, 0xe2, 12807a629e27cc35868e2b7601983c7044cf8df0709Dmitry Shmidt 0xf3, 0xf4, 0xf5 }; 1293ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 130096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff/* Is either SUPPLICANT_NAME or P2P_SUPPLICANT_NAME */ 131096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic char supplicant_name[PROPERTY_VALUE_MAX]; 132096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff/* Is either SUPP_PROP_NAME or P2P_PROP_NAME */ 133096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffstatic char supplicant_prop_name[PROPERTY_KEY_MAX]; 134096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 135243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidtstatic int insmod(const char *filename, const char *args) 136cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 137cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project void *module; 138cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project unsigned int size; 139cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int ret; 140cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 141cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project module = load_file(filename, &size); 142cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (!module) 143cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 144cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 145243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt ret = init_module(module, size, args); 146cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 147cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project free(module); 148cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 149cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return ret; 150cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 151cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 152cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectstatic int rmmod(const char *modname) 153cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 154cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int ret = -1; 155cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int maxtry = 10; 156cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 157cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (maxtry-- > 0) { 158cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project ret = delete_module(modname, O_NONBLOCK | O_EXCL); 159cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (ret < 0 && errno == EAGAIN) 160cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(500000); 161cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project else 162cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project break; 163cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 164cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 165cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (ret != 0) 166b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("Unable to unload driver module \"%s\": %s\n", 167cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project modname, strerror(errno)); 168cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return ret; 169cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 170cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 171445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruint do_dhcp_request(int *ipaddr, int *gateway, int *mask, 172445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru int *dns1, int *dns2, int *server, int *lease) { 173445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru /* For test driver, always report success */ 174da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff if (strcmp(primary_iface, WIFI_TEST_INTERFACE) == 0) 175445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return 0; 176445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 177445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru if (ifc_init() < 0) 178445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return -1; 179445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 180da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff if (do_dhcp(primary_iface) < 0) { 181445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru ifc_close(); 182445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return -1; 183445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru } 184445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru ifc_close(); 185445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru get_dhcp_info(ipaddr, gateway, mask, dns1, dns2, server, lease); 186445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return 0; 187445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru} 188445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 189445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queruconst char *get_dhcp_error_string() { 190445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru return dhcp_lasterror(); 191445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru} 192445591dded5753cf72dcf329a56af732776de97dJean-Baptiste Queru 1932bb990bfd2580f9be93a413e3a5325057977a828Irfan Sheriffint is_wifi_driver_loaded() { 194cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char driver_status[PROPERTY_VALUE_MAX]; 195d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 196cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project FILE *proc; 197cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char line[sizeof(DRIVER_MODULE_TAG)+10]; 198d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 199cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 200cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (!property_get(DRIVER_PROP_NAME, driver_status, NULL) 201cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project || strcmp(driver_status, "ok") != 0) { 202cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; /* driver not loaded */ 203cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 204d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 205cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* 206cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * If the property says the driver is loaded, check to 207cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * make sure that the property setting isn't just left 208cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * over from a previous manual shutdown or a runtime 209cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * crash. 210cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 211cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if ((proc = fopen(MODULE_FILE, "r")) == NULL) { 21264cca04dcbf4e21a51131224b9d0f0c596f876d4Steve Block ALOGW("Could not open %s: %s", MODULE_FILE, strerror(errno)); 213243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt property_set(DRIVER_PROP_NAME, "unloaded"); 214cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 215cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 216cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while ((fgets(line, sizeof(line), proc)) != NULL) { 217cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strncmp(line, DRIVER_MODULE_TAG, strlen(DRIVER_MODULE_TAG)) == 0) { 218cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project fclose(proc); 219cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 1; 220cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 221cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 222cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project fclose(proc); 223cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project property_set(DRIVER_PROP_NAME, "unloaded"); 224cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 225d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#else 226d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt return 1; 227d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 228cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 229cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 230cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectint wifi_load_driver() 231cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 232d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 233cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char driver_status[PROPERTY_VALUE_MAX]; 234cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int count = 100; /* wait at most 20 seconds for completion */ 235cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 2362bb990bfd2580f9be93a413e3a5325057977a828Irfan Sheriff if (is_wifi_driver_loaded()) { 237cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 238cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 239cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 240243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt if (insmod(DRIVER_MODULE_PATH, DRIVER_MODULE_ARG) < 0) 241cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 242243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt 243243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt if (strcmp(FIRMWARE_LOADER,"") == 0) { 2448fb5f74df7b25051e007a67eea22b984ef7dc76aDmitry Shmidt /* usleep(WIFI_DRIVER_LOADER_DELAY); */ 245243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt property_set(DRIVER_PROP_NAME, "ok"); 246243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt } 247243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt else { 248243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt property_set("ctl.start", FIRMWARE_LOADER); 249243af8b84968ec4f5afb628c43a2c541c4feee7bDmitry Shmidt } 250cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project sched_yield(); 251cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (count-- > 0) { 252cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (property_get(DRIVER_PROP_NAME, driver_status, NULL)) { 253cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strcmp(driver_status, "ok") == 0) 254cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 2557b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt else if (strcmp(DRIVER_PROP_NAME, "failed") == 0) { 2567b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt wifi_unload_driver(); 257cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 2587b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt } 259cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 260cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(200000); 261cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 262cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project property_set(DRIVER_PROP_NAME, "timeout"); 2637b43699180e593b19092eb2a091c4bca105aca77Dmitry Shmidt wifi_unload_driver(); 264cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 265d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#else 266d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt property_set(DRIVER_PROP_NAME, "ok"); 267d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt return 0; 268d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 269cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 270cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 271cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Projectint wifi_unload_driver() 272cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 2734c1a1fedd632791580c4b483c31abc4e583eae16Dmitry Shmidt usleep(200000); /* allow to finish interface down */ 274953c1140659ae935e4718d4fd48662db178814f6Dmitry Shmidt#ifdef WIFI_DRIVER_MODULE_PATH 275cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (rmmod(DRIVER_MODULE_NAME) == 0) { 276953c1140659ae935e4718d4fd48662db178814f6Dmitry Shmidt int count = 20; /* wait at most 10 seconds for completion */ 2770e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt while (count-- > 0) { 2780e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt if (!is_wifi_driver_loaded()) 2790e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt break; 2800e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt usleep(500000); 2810e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt } 282953c1140659ae935e4718d4fd48662db178814f6Dmitry Shmidt usleep(500000); /* allow card removal */ 2830e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt if (count) { 2840e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt return 0; 2850e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt } 2860e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt return -1; 287cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } else 288cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 289d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#else 290d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt property_set(DRIVER_PROP_NAME, "unloaded"); 291d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt return 0; 292d301cb7a5e76f82d265f8a7d408bec3159614f0bDmitry Shmidt#endif 293cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 294cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 2953ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidtint ensure_entropy_file_exists() 2963ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt{ 2973ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt int ret; 2983ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt int destfd; 2993ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 3003ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt ret = access(SUPP_ENTROPY_FILE, R_OK|W_OK); 3013ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if ((ret == 0) || (errno == EACCES)) { 3023ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if ((ret != 0) && 3033ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt (chmod(SUPP_ENTROPY_FILE, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) != 0)) { 3045efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot set RW to \"%s\": %s", SUPP_ENTROPY_FILE, strerror(errno)); 3053ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3063ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3073ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return 0; 3083ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 309cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root destfd = TEMP_FAILURE_RETRY(open(SUPP_ENTROPY_FILE, O_CREAT|O_RDWR, 0660)); 3103ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (destfd < 0) { 3115efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot create \"%s\": %s", SUPP_ENTROPY_FILE, strerror(errno)); 3123ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3133ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3143ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 315cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root if (TEMP_FAILURE_RETRY(write(destfd, dummy_key, sizeof(dummy_key))) != sizeof(dummy_key)) { 3165efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error writing \"%s\": %s", SUPP_ENTROPY_FILE, strerror(errno)); 3173ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt close(destfd); 3183ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3193ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3203ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt close(destfd); 3213ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 3223ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt /* chmod is needed because open() didn't set permisions properly */ 3233ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (chmod(SUPP_ENTROPY_FILE, 0660) < 0) { 3245efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing permissions of %s to 0660: %s", 3253ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt SUPP_ENTROPY_FILE, strerror(errno)); 3263ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt unlink(SUPP_ENTROPY_FILE); 3273ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3283ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3293ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 3303ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (chown(SUPP_ENTROPY_FILE, AID_SYSTEM, AID_WIFI) < 0) { 3315efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing group ownership of %s to %d: %s", 3323ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt SUPP_ENTROPY_FILE, AID_WIFI, strerror(errno)); 3333ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt unlink(SUPP_ENTROPY_FILE); 3343ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return -1; 3353ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 3363ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt return 0; 3373ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt} 3383ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 33967ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriffint ensure_config_file_exists(const char *config_file) 34067ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff{ 34167ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff char buf[2048]; 342cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int srcfd, destfd; 3438a5b197b3d5878e3f1cf49c9c38c090456107e87Irfan Sheriff struct stat sb; 344cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int nread; 34589ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt int ret; 346cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 34767ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff ret = access(config_file, R_OK|W_OK); 34889ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt if ((ret == 0) || (errno == EACCES)) { 34989ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt if ((ret != 0) && 35067ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff (chmod(config_file, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) != 0)) { 3515efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot set RW to \"%s\": %s", config_file, strerror(errno)); 35289ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt return -1; 35389ae703cd6d4b2bc86c4bd281a8e460fd5679891Dmitry Shmidt } 354c6bb3b5e1e06aa7798342f4ca8d4cc6364f5ec9aDmitry Shmidt return 0; 355cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } else if (errno != ENOENT) { 3565efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot access \"%s\": %s", config_file, strerror(errno)); 357cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 358cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 359cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 360cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root srcfd = TEMP_FAILURE_RETRY(open(SUPP_CONFIG_TEMPLATE, O_RDONLY)); 361cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (srcfd < 0) { 3625efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot open \"%s\": %s", SUPP_CONFIG_TEMPLATE, strerror(errno)); 363cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 364cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 365cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 366cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root destfd = TEMP_FAILURE_RETRY(open(config_file, O_CREAT|O_RDWR, 0660)); 367cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (destfd < 0) { 368cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(srcfd); 3695efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Cannot create \"%s\": %s", config_file, strerror(errno)); 370cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 371cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 372cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 373cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root while ((nread = TEMP_FAILURE_RETRY(read(srcfd, buf, sizeof(buf)))) != 0) { 374cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (nread < 0) { 3755efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error reading \"%s\": %s", SUPP_CONFIG_TEMPLATE, strerror(errno)); 376cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(srcfd); 377cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(destfd); 37867ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff unlink(config_file); 379cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 380cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 381cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root TEMP_FAILURE_RETRY(write(destfd, buf, nread)); 382cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 383cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 384cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(destfd); 385cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project close(srcfd); 386cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 38724bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt /* chmod is needed because open() didn't set permisions properly */ 38867ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff if (chmod(config_file, 0660) < 0) { 3895efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing permissions of %s to 0660: %s", 39067ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff config_file, strerror(errno)); 39167ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff unlink(config_file); 39224bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt return -1; 39324bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt } 39424bf7fc4e02b552650f299d16303eca0825dd8c8Dmitry Shmidt 39567ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff if (chown(config_file, AID_SYSTEM, AID_WIFI) < 0) { 3965efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Error changing group ownership of %s to %d: %s", 39767ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff config_file, AID_WIFI, strerror(errno)); 39867ba2276b9a5232685e14d416fea0b1250515594Irfan Sheriff unlink(config_file); 399cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 400cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 401c6bb3b5e1e06aa7798342f4ca8d4cc6364f5ec9aDmitry Shmidt return 0; 402cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 403cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 404096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriffint wifi_start_supplicant(int p2p_supported) 405cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 406cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 407cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int count = 200; /* wait at most 20 seconds for completion */ 408cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#ifdef HAVE_LIBC_SYSTEM_PROPERTIES 409cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project const prop_info *pi; 410da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff unsigned serial = 0, i; 411cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#endif 412cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 413096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (p2p_supported) { 414096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_name, P2P_SUPPLICANT_NAME); 415096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_prop_name, P2P_PROP_NAME); 416096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 417096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff /* Ensure p2p config file is created */ 418096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (ensure_config_file_exists(P2P_CONFIG_FILE) < 0) { 419096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff ALOGE("Failed to create a p2p config file"); 420096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff return -1; 421096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } 422096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 423096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } else { 424096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_name, SUPPLICANT_NAME); 425096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff strcpy(supplicant_prop_name, SUPP_PROP_NAME); 426096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } 427096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 428cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Check whether already running */ 429eed817e46ee7351f21673118eda9a5960a483120Jonathan DE CESCO if (property_get(supplicant_prop_name, supp_status, NULL) 430cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project && strcmp(supp_status, "running") == 0) { 431cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 432cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 433cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 434cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Before starting the daemon, make sure its config file exists */ 435096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (ensure_config_file_exists(SUPP_CONFIG_FILE) < 0) { 4365efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Wi-Fi will not be enabled"); 437cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 438cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 439cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 4403ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt if (ensure_entropy_file_exists() < 0) { 4415efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Wi-Fi entropy file was not created"); 4423ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt } 4433ab3e6696757541c098a251981c074fc980f4dc7Dmitry Shmidt 444cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Clear out any stale socket files that might be left over. */ 445de9abffc3815449cbd8d756937030cb0353fb9f2Dmitry Shmidt wpa_ctrl_cleanup(); 446cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 447da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff /* Reset sockets used for exiting from hung state */ 4480f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde exit_sockets[0] = exit_sockets[1] = -1; 449da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 450cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#ifdef HAVE_LIBC_SYSTEM_PROPERTIES 451cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* 452cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Get a reference to the status property, so we can distinguish 453cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * the case where it goes stopped => running => stopped (i.e., 454cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * it start up, but fails right away) from the case in which 455cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * it starts in the stopped state and never manages to start 456cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * running at all. 457cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 458096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff pi = __system_property_find(supplicant_prop_name); 459cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (pi != NULL) { 46014c02f245e56687b765487d25a034d71196d33b6Colin Cross serial = __system_property_serial(pi); 461cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 462cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#endif 463da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff property_get("wifi.interface", primary_iface, WIFI_TEST_INTERFACE); 464096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 465096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff property_set("ctl.start", supplicant_name); 466cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project sched_yield(); 467cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 468cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (count-- > 0) { 469007404c68f5cf6328e30b6d0edac3fd52ef36abbDmitry Shmidt#ifdef HAVE_LIBC_SYSTEM_PROPERTIES 470cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (pi == NULL) { 471096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff pi = __system_property_find(supplicant_prop_name); 472cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 473cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (pi != NULL) { 4744431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo /* 4754431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo * property serial updated means that init process is scheduled 4764431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo * after we sched_yield, further property status checking is based on this */ 4774431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo if (__system_property_serial(pi) != serial) { 4784431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo __system_property_read(pi, NULL, supp_status); 4794431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo if (strcmp(supp_status, "running") == 0) { 4804431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo return 0; 4814431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo } else if (strcmp(supp_status, "stopped") == 0) { 4824431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo return -1; 4834431a1c34d1a9c36b7251217a2783d09ee1a7ac3jiaguo } 484cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 485cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 486cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#else 487096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL)) { 488cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strcmp(supp_status, "running") == 0) 489cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 490cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 491cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project#endif 492cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(100000); 493cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 494cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 495cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 496cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 497745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriffint wifi_stop_supplicant(int p2p_supported) 498cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 499cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 500cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int count = 50; /* wait at most 5 seconds for completion */ 501cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 502745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff if (p2p_supported) { 503745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_name, P2P_SUPPLICANT_NAME); 504745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_prop_name, P2P_PROP_NAME); 505745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff } else { 506745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_name, SUPPLICANT_NAME); 507745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff strcpy(supplicant_prop_name, SUPP_PROP_NAME); 508745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff } 509745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff 510cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Check whether supplicant already stopped */ 511096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL) 512cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project && strcmp(supp_status, "stopped") == 0) { 513cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 514cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 515cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 516096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff property_set("ctl.stop", supplicant_name); 517cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project sched_yield(); 518cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 519cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project while (count-- > 0) { 520096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL)) { 521cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strcmp(supp_status, "stopped") == 0) 522cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 523cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 524cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project usleep(100000); 525cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 526745e7fd4e09db2b47371338ee54c54255e286473Irfan Sheriff ALOGE("Failed to stop supplicant"); 527cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 528cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 529cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 5300f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_connect_on_socket_path(const char *path) 531cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 532cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 533cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 534cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Make sure supplicant is running */ 535096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (!property_get(supplicant_prop_name, supp_status, NULL) 536cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project || strcmp(supp_status, "running") != 0) { 5375efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Supplicant not running, cannot connect"); 538cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 539cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 540cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 5410f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = wpa_ctrl_open(path); 5420f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (ctrl_conn == NULL) { 5435efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Unable to open connection to supplicant on \"%s\": %s", 544da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff path, strerror(errno)); 545cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 546cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 5470f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde monitor_conn = wpa_ctrl_open(path); 5480f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (monitor_conn == NULL) { 5490f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 5500f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = NULL; 551cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 552cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 5530f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (wpa_ctrl_attach(monitor_conn) != 0) { 5540f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(monitor_conn); 5550f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 5560f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = monitor_conn = NULL; 557cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 558cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 559025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 5600f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (socketpair(AF_UNIX, SOCK_STREAM, 0, exit_sockets) == -1) { 5610f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(monitor_conn); 5620f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 5630f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = monitor_conn = NULL; 564025321a09dbe7820870125acf771e1da02684605Irfan Sheriff return -1; 565025321a09dbe7820870125acf771e1da02684605Irfan Sheriff } 566025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 567cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 568cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 569cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 570da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff/* Establishes the control and monitor socket connections on the interface */ 5710f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_connect_to_supplicant() 572da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff{ 573ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt static char path[PATH_MAX]; 574da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 5750f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (access(IFACE_DIR, F_OK) == 0) { 5760f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde snprintf(path, sizeof(path), "%s/%s", IFACE_DIR, primary_iface); 577da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff } else { 5780f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde snprintf(path, sizeof(path), "@android:wpa_%s", primary_iface); 579da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff } 5800f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wifi_connect_on_socket_path(path); 581da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff} 582da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 5830f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_send_command(const char *cmd, char *reply, size_t *reply_len) 584cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 585cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int ret; 5860f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (ctrl_conn == NULL) { 5876a70518b93928d1c91457ff805e375c82d76b0e5Steve Block ALOGV("Not connected to wpa_supplicant - \"%s\" command dropped.\n", cmd); 588cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 589cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 5900f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ret = wpa_ctrl_request(ctrl_conn, cmd, strlen(cmd), reply, reply_len, NULL); 591cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (ret == -2) { 592b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("'%s' command timed out.\n", cmd); 593025321a09dbe7820870125acf771e1da02684605Irfan Sheriff /* unblocks the monitor receive socket for termination */ 5940f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde TEMP_FAILURE_RETRY(write(exit_sockets[0], "T", 1)); 595cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -2; 596cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } else if (ret < 0 || strncmp(reply, "FAIL", 4) == 0) { 597cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return -1; 598cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 599cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (strncmp(cmd, "PING", 4) == 0) { 600cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project reply[*reply_len] = '\0'; 601cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 602cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return 0; 603cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 604cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 605ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Maheshint wifi_supplicant_connection_active() 606ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh{ 607ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 608ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 609ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (property_get(supplicant_prop_name, supp_status, NULL)) { 610ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (strcmp(supp_status, "stopped") == 0) 611ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return -1; 612ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } 613ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 614ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return 0; 615ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh} 616ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 6170f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_ctrl_recv(char *reply, size_t *reply_len) 618025321a09dbe7820870125acf771e1da02684605Irfan Sheriff{ 619025321a09dbe7820870125acf771e1da02684605Irfan Sheriff int res; 6200f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde int ctrlfd = wpa_ctrl_get_fd(monitor_conn); 62145bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt struct pollfd rfds[2]; 62245bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt 62345bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt memset(rfds, 0, 2 * sizeof(struct pollfd)); 62445bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt rfds[0].fd = ctrlfd; 62545bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt rfds[0].events |= POLLIN; 6260f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde rfds[1].fd = exit_sockets[1]; 62745bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt rfds[1].events |= POLLIN; 628ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh do { 629ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh res = TEMP_FAILURE_RETRY(poll(rfds, 2, 30000)); 630ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (res < 0) { 631ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh ALOGE("Error poll = %d", res); 632ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return res; 633ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } else if (res == 0) { 634ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh /* timed out, check if supplicant is active 635ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh * or not .. 636ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh */ 637ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh res = wifi_supplicant_connection_active(); 638ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh if (res < 0) 639ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh return -2; 640ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } 641ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh } while (res == 0); 642ff6902dc4f034d67d6c3cbdddbe04f61913d5b79Mahesh 64345bf8a6f0bbf148ca5a1a626ab1c5c38a0855e13Dmitry Shmidt if (rfds[0].revents & POLLIN) { 6440f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wpa_ctrl_recv(monitor_conn, reply, reply_len); 645025321a09dbe7820870125acf771e1da02684605Irfan Sheriff } 6460f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde 6470f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde /* it is not rfds[0], then it must be rfts[1] (i.e. the exit socket) 6480f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde * or we timed out. In either case, this call has failed .. 6490f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde */ 650897f6dd64224d22c22c8f7a497331bf5bc335e4cIrfan Sheriff return -2; 651025321a09dbe7820870125acf771e1da02684605Irfan Sheriff} 652025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 6530f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_wait_on_socket(char *buf, size_t buflen) 654cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 655cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project size_t nread = buflen - 1; 656cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project int result; 6570f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde char *match, *match2; 6580e9f488e672abf0d14580261998cfd9c7211c112Dmitry Shmidt 6590f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (monitor_conn == NULL) { 6600ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - connection closed", 6610ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 6622631f993753d726c8c6a85ab66a83db79e54f0bbIrfan Sheriff } 663cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 6640f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde result = wifi_ctrl_recv(buf, &nread); 665096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 666096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff /* Terminate reception on exit socket */ 667096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (result == -2) { 6680ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - connection closed", 6690ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 670096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff } 671096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 672cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (result < 0) { 673b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("wifi_ctrl_recv failed: %s\n", strerror(errno)); 6740ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - recv error", 6750ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 676cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 677cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project buf[nread] = '\0'; 678cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Check for EOF on the socket */ 679cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (result == 0 && nread == 0) { 680cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* Fabricate an event to pass up */ 681b381b932acfa441da5607f37ac4ef6573ed5be96Steve Block ALOGD("Received EOF on supplicant socket\n"); 6820ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh return snprintf(buf, buflen, "IFNAME=%s %s - signal 0 received", 6830ef9a33a471c239824bb3958a99a9dea8a89ee69Mahesh primary_iface, WPA_EVENT_TERMINATING); 684cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 685cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project /* 686cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * Events strings are in the format 687cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 688ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt * IFNAME=iface <N>CTRL-EVENT-XXX 689ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt * or 690cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * <N>CTRL-EVENT-XXX 691cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * 692cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * where N is the message level in numerical form (0=VERBOSE, 1=DEBUG, 693cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * etc.) and XXX is the event name. The level information is not useful 694cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project * to us, so strip it off. 695cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project */ 6960f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde 697ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt if (strncmp(buf, IFNAME, IFNAMELEN) == 0) { 698ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt match = strchr(buf, ' '); 699ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt if (match != NULL) { 7000f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (match[1] == '<') { 7010f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde match2 = strchr(match + 2, '>'); 7020f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (match2 != NULL) { 7030f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde nread -= (match2 - match); 7040f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde memmove(match + 1, match2 + 1, nread - (match - buf) + 1); 7050f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde } 706ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt } 707ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt } else { 708ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt return snprintf(buf, buflen, "%s", WPA_EVENT_IGNORE); 709ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt } 7100f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde } else if (buf[0] == '<') { 711ec0576034bb5c1b0aed1b23120b71f9599d2bb73Dmitry Shmidt match = strchr(buf, '>'); 712cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project if (match != NULL) { 7130f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde nread -= (match + 1 - buf); 7140f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde memmove(buf, match + 1, nread + 1); 7150f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ALOGV("supplicant generated event without interface - %s\n", buf); 716cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 7170f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde } else { 7180f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde /* let the event go as is! */ 7190f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ALOGW("supplicant generated event without interface and without message level - %s\n", buf); 720cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 721096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff 722cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project return nread; 723cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 724cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 7250f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_wait_for_event(char *buf, size_t buflen) 726cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 7270f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wifi_wait_on_socket(buf, buflen); 728da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff} 7295a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff 7300f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndevoid wifi_close_sockets() 731da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff{ 7320f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (ctrl_conn != NULL) { 7330f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(ctrl_conn); 7340f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde ctrl_conn = NULL; 735cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 736da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 7370f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (monitor_conn != NULL) { 7380f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wpa_ctrl_close(monitor_conn); 7390f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde monitor_conn = NULL; 740da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff } 741da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 7420f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (exit_sockets[0] >= 0) { 7430f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde close(exit_sockets[0]); 7440f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde exit_sockets[0] = -1; 745cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project } 7465a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff 7470f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde if (exit_sockets[1] >= 0) { 7480f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde close(exit_sockets[1]); 7490f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde exit_sockets[1] = -1; 750025321a09dbe7820870125acf771e1da02684605Irfan Sheriff } 751da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff} 752da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff 7530f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndevoid wifi_close_supplicant_connection() 754da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff{ 755da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff char supp_status[PROPERTY_VALUE_MAX] = {'\0'}; 756da52930b89bb0e03948f3981e75f8727ea023587Irfan Sheriff int count = 50; /* wait at most 5 seconds to ensure init has stopped stupplicant */ 757025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 7580f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde wifi_close_sockets(); 759025321a09dbe7820870125acf771e1da02684605Irfan Sheriff 7605a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff while (count-- > 0) { 761096e49c869cdb297f1ea99289ae44c2a0e487fcfIrfan Sheriff if (property_get(supplicant_prop_name, supp_status, NULL)) { 7625a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff if (strcmp(supp_status, "stopped") == 0) 7635a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff return; 7645a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff } 7655a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff usleep(100000); 7665a8a2d2b130644f0f4abad8586f0a245e4c15be8Irfan Sheriff } 767cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 768cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project 7690f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapndeint wifi_command(const char *command, char *reply, size_t *reply_len) 770cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project{ 7710f330488afcfff031bc0ba88de826f998f7cfaf9Vinit Deshapnde return wifi_send_command(command, reply, reply_len); 772cc490161f6af9e4a6842ee827e4bfc43bc4509d5The Android Open Source Project} 7734b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt 7744b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidtconst char *wifi_get_fw_path(int fw_type) 7754b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt{ 7764b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt switch (fw_type) { 7774b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt case WIFI_GET_FW_PATH_STA: 7784b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return WIFI_DRIVER_FW_PATH_STA; 7794b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt case WIFI_GET_FW_PATH_AP: 7804b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return WIFI_DRIVER_FW_PATH_AP; 7814b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt case WIFI_GET_FW_PATH_P2P: 7824b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return WIFI_DRIVER_FW_PATH_P2P; 7834b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt } 7844b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt return NULL; 7854b7ffa08be8d58932841c52ce253ae6ca886a4f2Dmitry Shmidt} 78629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt 78729a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidtint wifi_change_fw_path(const char *fwpath) 78829a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt{ 78929a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt int len; 79029a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt int fd; 79129a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt int ret = 0; 79229a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt 79329a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt if (!fwpath) 79429a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt return ret; 795cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root fd = TEMP_FAILURE_RETRY(open(WIFI_DRIVER_FW_PATH_PARAM, O_WRONLY)); 79629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt if (fd < 0) { 7975efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Failed to open wlan fw path param (%s)", strerror(errno)); 79829a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt return -1; 79929a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt } 80029a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt len = strlen(fwpath) + 1; 801cf449e140874e4f57f120a88411c7b642172ecf2Kenny Root if (TEMP_FAILURE_RETRY(write(fd, fwpath, len)) != len) { 8025efbd421e0029d6fc44b1cc65c0e5e0d85e5161fSteve Block ALOGE("Failed to write wlan fw path param (%s)", strerror(errno)); 80329a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt ret = -1; 80429a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt } 80529a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt close(fd); 80629a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt return ret; 80729a4d4d74b512e450a7d2ae97d4222c24a13b87eDmitry Shmidt} 808